Discussion in 'Advanced Growing Techniques' started by yellow33, Jun 8, 2006.

  1. Hey I have a question about MH and HPS being used at the same time, my MH for my 400wt went out. The only thing running right now is the 150wt MH, now I was wondering if I ran the 400wt HPS along with the 150wt MH(in different ballasts) what kind of abnormalities should I expect, if any. I've read on other forums about how they sometimes cause problems and sometimes they don't depending on how you set it up or whatever. Anyone have any feedback about this matter would be greatly appreciated.:D By the way the room is 4-1/2' X 5'.

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